Home / 80,510,540.20-120,765,810.30-67,755,956.20

Finding the Fourth Proportional to 80,510,540.20, 120,765,810.30 and 67,755,956.20

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Solution

The fourth proportional to 80,510,540.20, 120,765,810.30 and 67,755,956.20 is: 101,633,934.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,510,540.20 : 120,765,810.30 = 67,755,956.20 : x
  2. Step 2: Convert to fraction form
    80,510,540.20/120,765,810.30 = 67,755,956.20/x
  3. Step 3: Cross multiply
    80,510,540.20x = 120,765,810.30 × 67,755,956.20
  4. Step 4: Simplify right side
    80,510,540.20x = 8,182,602,953,144,309
  5. Step 5: Solve for x
    x = 8,182,602,953,144,309/80,510,540.20
  6. Step 6: Final answer
    x = 101,633,934.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.